Chemical degradation and poisoning mechanism of cermet anodes in solid oxide fuel cells

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Citations (Scopus)

Abstract

This paper reports the chemical degradation of Ni-based SOFC anodes caused by small amounts of impurities supplied with fuels. In particular, the impurity dependence of degradation behaviors as well as poisoning mechanisms are highlighted and investigated. Poisoning effects by chlorine and siloxanes are found to be critical to achieve satisfactory SOFC durability. In addition, it has also been demonstrated that phosphorus and boron compounds lead to gradual decrease in cell voltage, Ni grain growth, and even formation of nickel phosphates. The measured trends are discussed in relation to the thermochemical calculations and FESEM/STEM-EDX analysis.

Original languageEnglish
Title of host publicationECS Transactions - Solid Oxide Fuel Cells 11 (SOFC-XI)
Pages2031-2038
Number of pages8
Edition2 PART 3
DOIs
Publication statusPublished - Dec 1 2009
Event11th International Symposium on Solid Oxide Fuel Cells (SOFC-XI)- 216th ECS Meeting - Vienna, Austria
Duration: Oct 4 2009Oct 9 2009

Publication series

NameECS Transactions
Number2 PART 3
Volume25
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

Other11th International Symposium on Solid Oxide Fuel Cells (SOFC-XI)- 216th ECS Meeting
CountryAustria
CityVienna
Period10/4/0910/9/09

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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